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581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <support/check.h>
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#include <support/timespec.h>
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#include <support/xunistd.h>
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#include <support/xthread.h>
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#ifdef ENABLE_PP
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#include "tst-tpp.h"
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#endif
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/* A bogus clock value that tells run_test to use pthread_mutex_timedlock
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rather than pthread_mutex_clocklock. */
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#define CLOCK_USE_TIMEDLOCK (-1)
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static void
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do_test_clock (clockid_t clockid, int tmo_result)
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{
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const clockid_t clockid_for_get =
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(clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid;
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size_t ps = sysconf (_SC_PAGESIZE);
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char tmpfname[] = "/tmp/tst-mutex9.XXXXXX";
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char data[ps];
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void *mem;
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int fd;
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pthread_mutex_t *m;
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pthread_mutexattr_t a;
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pid_t pid;
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fd = mkstemp (tmpfname);
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if (fd == -1)
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FAIL_EXIT1 ("cannot open temporary file: %m\n");
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/* Make sure it is always removed. */
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unlink (tmpfname);
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/* Create one page of data. */
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memset (data, '\0', ps);
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/* Write the data to the file. */
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xwrite (fd, data, ps);
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mem = xmmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
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m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t))
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& ~(__alignof (pthread_mutex_t) - 1));
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TEST_COMPARE (pthread_mutexattr_init (&a), 0);
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TEST_COMPARE (pthread_mutexattr_setpshared (&a, PTHREAD_PROCESS_SHARED), 0);
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TEST_COMPARE (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_RECURSIVE), 0);
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#if defined ENABLE_PI
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TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT), 0);
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#elif defined ENABLE_PP
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TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_PROTECT), 0);
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TEST_COMPARE (pthread_mutexattr_setprioceiling (&a, 6), 0);
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#endif
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int e;
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if ((e = pthread_mutex_init (m, &a)) != 0)
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{
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#ifdef ENABLE_PI
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if (e == ENOTSUP)
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FAIL_UNSUPPORTED ("PI mutexes unsupported");
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#endif
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FAIL_EXIT1 ("mutex_init failed");
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}
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TEST_COMPARE (pthread_mutex_lock (m), 0);
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TEST_COMPARE (pthread_mutexattr_destroy (&a), 0);
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puts ("going to fork now");
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pid = xfork ();
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if (pid == 0)
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{
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if (pthread_mutex_trylock (m) == 0)
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FAIL_EXIT1 ("child: mutex_trylock succeeded");
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if (pthread_mutex_unlock (m) == 0)
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FAIL_EXIT1 ("child: mutex_unlock succeeded");
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const struct timespec ts = timespec_add (xclock_now (clockid_for_get),
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make_timespec (0, 500000000));
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if (clockid == CLOCK_USE_TIMEDLOCK)
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TEST_COMPARE (pthread_mutex_timedlock (m, &ts), tmo_result);
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else
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TEST_COMPARE (pthread_mutex_clocklock (m, clockid, &ts), tmo_result);
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alarm (1);
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pthread_mutex_lock (m);
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puts ("child: mutex_lock returned");
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exit (0);
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}
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sleep (2);
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int status;
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if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
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FAIL_EXIT1 ("waitpid failed");
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if (! WIFSIGNALED (status))
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FAIL_EXIT1 ("child not killed by signal");
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TEST_COMPARE (WTERMSIG (status), SIGALRM);
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}
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static int
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do_test (void)
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{
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#ifdef ENABLE_PP
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init_tpp_test ();
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#endif
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int monotonic_result =
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#ifdef ENABLE_PI
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support_mutex_pi_monotonic () ? ETIMEDOUT : EINVAL;
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#else
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ETIMEDOUT;
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#endif
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do_test_clock (CLOCK_USE_TIMEDLOCK, ETIMEDOUT);
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do_test_clock (CLOCK_REALTIME, ETIMEDOUT);
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do_test_clock (CLOCK_MONOTONIC, monotonic_result);
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return 0;
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}
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#include <support/test-driver.c>
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